1121234272 has 48 divisors (see below), whose sum is σ = 2250999072. Its totient is φ = 549642240.

The previous prime is 1121234267. The next prime is 1121234321. The reversal of 1121234272 is 2724321211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437218 + ... + 439774.

It is an arithmetic number, because the mean of its divisors is an integer number (46895814).

Almost surely, 2^1121234272 is an apocalyptic number.

It is an amenable number.

1121234272 is an abundant number, since it is smaller than the sum of its proper divisors (1129764800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121234272 is a wasteful number, since it uses less digits than its factorization.

1121234272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831 (or 2823 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1121234272 is about 33484.8364487569. The cubic root of 1121234272 is about 1038.8801654439.

Adding to 1121234272 its reverse (2724321211), we get a palindrome (3845555483).

The spelling of 1121234272 in words is "one billion, one hundred twenty-one million, two hundred thirty-four thousand, two hundred seventy-two".